Microsemi Corp. - High Performance Timing · Electronic Components
666163-643
Crystal Unit, Quartz
Part Number666163-643
ManufacturerMicrosemi Corp. - High Performance Timing
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-080-7227 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Terminal Length1.500 INCHES NOMINAL
Equivalent Resistance Value In Ohm60.0 MAXIMUM
Drive Level Rating1.0 MILLIWATTS NOMINAL
Style DesignatorOVAL BODY, WIRE LEADS
Operating Temp Range-28.0 TO 75.0 CELSIUS
Center To Center Distance Between0.192 INCHES NOMINAL
Terminal Diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM
Overall Length0.530 INCHES MAXIMUM
Specified Frequency27.845 MEGAHERTZ
Circuit ResonanceSERIES RESONANCE
Mode Of OscillationFUNDAMENTAL
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 666163-643 available?
We can source 666163-643 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 666163-643 by Microsemi Corp. - High Performance Timing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 666163-643 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 666163-643?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 666163-643?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.